階段を一ステップ一段と一ステップ二段で昇る場合の身体的負荷の違い:－自由な歩調と規定された歩調の比較－

概要

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This study compares the physiological work load between two ascending patterns, single-step (SS) and double-step (DS), when climbing a public staircase at the two different climbing rates, controlled speed (105steps/min) and free speed. The SS pattern involved climbing one step at a time, while the DS pattern involved climbing two steps in a single stride. Thirteen female subjects climbed a typical 7-storey building, giving a total of 168 steps and vertical movement of 27.7 m. The results for perceived exertion (RPE), blood lactate level, oxygen consumption and muscle EMG activity were significantly higher (p < 0.05) with the DS than SS pattern at a controlled speed. The results also showed that the ascending speed, heart rate, blood lactate level, respiratory quotient (RQ) and RPE were significantly higher (p < 0.05) with the DS than SS pattern at a free speed. These results clearly indicate the higher physical workload involved with the DS than SS pattern at both free and controlled speeds.
日本家政学会の論文